I think the first priority is specifically for elderly in care homes. They are by definition in a conjugate setting where they can't isolate, because the care workers come in and out and often jump from one care home to another, where they spread the disease. Although a fair amount of effort is supposedly being expended to isolate and protect the elderly in these settings, whatever it is, it's not working.
https://www.kff.org/coronavirus-covid-19...ing-homes/
Quote:The most recently available data show long-term care facilities account for 8% of all coronavirus cases but more than 40% of all COVID-19 deaths. Overall, COVID-19 has taken a disproportionate toll on communities of color.
Ultimately, you are looking at two risk scales:
1) The risk of getting COVID, which is related to ability to self-isolate. Here, healthcare workers have the highest risk (because they are directly exposed to patients with COVID-19), and the vaccine is important for them to safely do their job. Essential workers have moderate risk because they are exposed to large numbers of patients and cannot self-isolate, as are people in congregate settings (elderly in care homes, homeless people in shelters, prisoners, etc.), and then the average person who is in a non-essential worker or can work from home has the highest ability to isolate until vaccination.
2) The risk of severe illness of death if they get COVID. Here, you are basically looking at age and risk factors, independent of ability to avoid COVID-19.
So, it is somewhat logical to prioritize people who have a high risk of COVID-19 and conditional on getting COVID-19 are at high risk of severe disease or death, which is why the elderly in care homes are among the highest priority for vaccination. After that, you would look to vaccinate people who are at either high risk of getting COVID-19 (essential workers) or high risk of severe illness if they get COVID-19 (people with risk factors or advanced age, like you), and then the lowest priority should be people like me (those with none or minimal risk factors who can generally protect themselves.
BC